RFID Tag Antenna Coupled by Shorted Microstrip Line for Metallic Surfaces

RFID Tag Antenna Coupled by Shorted Microstrip Line for Metallic Surfaces

ABSTRACT This letter presents the design of a small and low‐profile RFID tag antenna in the UHF band that can be mounted on metallic objects. The designed tag antenna, which uses a ceramic material as a substrate, consists of a radiating patch and a microstrip line with two shorting pins for a proxi...

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Veröffentlicht in:ETRI journal 2008, 30(4), , pp.597-599
Hauptverfasser: Choi, Wonkyu, Kim, Jeong‐Seok, Bae, Ji‐Hoon, Choi, Gil‐Young, Pyo, Cheol‐Sig, Chae, Jong‐Suk
Format: Artikel
Sprache:eng
Schlagworte:
impedance matching
RFID
small antenna
tag antenna
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Beschreibung
Zusammenfassung:ABSTRACT This letter presents the design of a small and low‐profile RFID tag antenna in the UHF band that can be mounted on metallic objects. The designed tag antenna, which uses a ceramic material as a substrate, consists of a radiating patch and a microstrip line with two shorting pins for a proximity‐coupled feeding structure. Using this structure, impedance matching can be simply obtained between the antenna and tag chip without a matching network. The fractional impedance bandwidth for S11
ISSN:1225-6463
2233-7326
DOI:10.4218/etrij.08.0208.0063